PMID- 26612607 OWN - NLM STAT- MEDLINE DCOM- 20161007 LR - 20190115 IS - 1521-3773 (Electronic) IS - 1433-7851 (Print) IS - 1433-7851 (Linking) VI - 55 IP - 2 DP - 2016 Jan 11 TI - Activation of Electron-Deficient Quinones through Hydrogen-Bond-Donor-Coupled Electron Transfer. PG - 539-44 LID - 10.1002/anie.201508060 [doi] AB - Quinones are important organic oxidants in a variety of synthetic and biological contexts, and they are susceptible to activation towards electron transfer through hydrogen bonding. Whereas this effect of hydrogen bond donors (HBDs) has been observed for Lewis basic, weakly oxidizing quinones, comparable activation is not readily achieved when more reactive and synthetically useful electron-deficient quinones are used. We have successfully employed HBD-coupled electron transfer as a strategy to activate electron-deficient quinones. A systematic investigation of HBDs has led to the discovery that certain dicationic HBDs have an exceptionally large effect on the rate and thermodynamics of electron transfer. We further demonstrate that these HBDs can be used as catalysts in a quinone-mediated model synthetic transformation. CI - (c) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Turek, Amanda K AU - Turek AK AD - Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA). FAU - Hardee, David J AU - Hardee DJ AD - Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA). FAU - Ullman, Andrew M AU - Ullman AM AD - Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA). FAU - Nocera, Daniel G AU - Nocera DG AD - Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA). dnocera@fas.harvard.edu. FAU - Jacobsen, Eric N AU - Jacobsen EN AD - Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA). jacobsen@chemistry.harvard.edu. LA - eng GR - R01 GM043214/GM/NIGMS NIH HHS/United States GR - R37 GM043214/GM/NIGMS NIH HHS/United States GR - GM043214/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20151127 PL - Germany TA - Angew Chem Int Ed Engl JT - Angewandte Chemie (International ed. in English) JID - 0370543 RN - 0 (Quinones) SB - IM MH - Electrons MH - Hydrogen Bonding MH - Kinetics MH - Quinones/*chemistry MH - Thermodynamics PMC - PMC5120606 MID - NIHMS765620 OTO - NOTNLM OT - catalysis OT - electron transfer OT - hydrogen bonding OT - oxidation OT - quinones EDAT- 2015/11/28 06:00 MHDA- 2016/10/08 06:00 PMCR- 2017/01/11 CRDT- 2015/11/28 06:00 PHST- 2015/08/27 00:00 [received] PHST- 2015/10/23 00:00 [revised] PHST- 2015/11/28 06:00 [entrez] PHST- 2015/11/28 06:00 [pubmed] PHST- 2016/10/08 06:00 [medline] PHST- 2017/01/11 00:00 [pmc-release] AID - 10.1002/anie.201508060 [doi] PST - ppublish SO - Angew Chem Int Ed Engl. 2016 Jan 11;55(2):539-44. doi: 10.1002/anie.201508060. Epub 2015 Nov 27.